Home / 856,478.55-1,181,955.46-469,268.63

Finding the Fourth Proportional to 856,478.55, 1,181,955.46 and 469,268.63

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Solution

The fourth proportional to 856,478.55, 1,181,955.46 and 469,268.63 is: 647,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,478.55 : 1,181,955.46 = 469,268.63 : x
  2. Step 2: Convert to fraction form
    856,478.55/1,181,955.46 = 469,268.63/x
  3. Step 3: Cross multiply
    856,478.55x = 1,181,955.46 × 469,268.63
  4. Step 4: Simplify right side
    856,478.55x = 554,654,619,435.22
  5. Step 5: Solve for x
    x = 554,654,619,435.22/856,478.55
  6. Step 6: Final answer
    x = 647,598.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.